After years of lobbying by a small community of Catholic sisters from eastern Canada, the worldöÏÓãÊÓƵapp largest producer of potash is abandoning mining operations in territory south of Morocco.

A third of the people in sub-Saharan Africa are chronically hungry. But, strangely, small-scale farmers, 80 per cent of them women, are the Africans most likely to come up short when trying to feed their families.